Database.Bolt.Extras.DSL

Documentation

data NodeSelector

Selector for Nodes.

Constructors

NodeSelector

Fields

• nodeIdentifier :: Maybe Text
• nodeLabels :: [Text]
• nodeProperties :: [(Text, Value)]

Instances

Eq NodeSelector

Methods

(==) :: NodeSelector -> NodeSelector -> Bool

(/=) :: NodeSelector -> NodeSelector -> Bool

Show NodeSelector

Methods

showsPrec :: Int -> NodeSelector -> ShowS

show :: NodeSelector -> String

showList :: [NodeSelector] -> ShowS

data RelSelector

Selector for URelationships.

Constructors

RelSelector

Fields

• relIdentifier :: Maybe Text
• relLabel :: Text
• relProperties :: [(Text, Value)]

Instances

Eq RelSelector

Methods

(==) :: RelSelector -> RelSelector -> Bool

(/=) :: RelSelector -> RelSelector -> Bool

Show RelSelector

Methods

showsPrec :: Int -> RelSelector -> ShowS

show :: RelSelector -> String

showList :: [RelSelector] -> ShowS

data PathPart

Selector for paths.

Constructors

RelSelector :!->: NodeSelector infixl 2

directed relation

RelSelector :!-: NodeSelector infixl 2

not directed relation

Instances

Eq PathPart

Methods

(==) :: PathPart -> PathPart -> Bool

(/=) :: PathPart -> PathPart -> Bool

Show PathPart

Methods

showsPrec :: Int -> PathPart -> ShowS

show :: PathPart -> String

showList :: [PathPart] -> ShowS

data PathSelector

Constructors

PathSelector :-!: PathPart infixl 1

not directed relation

PathSelector :<-!: PathPart infixl 1

directed relation

P NodeSelector

starting node of Path

Instances

Eq PathSelector

Methods

(==) :: PathSelector -> PathSelector -> Bool

(/=) :: PathSelector -> PathSelector -> Bool

Show PathSelector

Methods

showsPrec :: Int -> PathSelector -> ShowS

show :: PathSelector -> String

showList :: [PathSelector] -> ShowS

data Selector

Constructors

PS PathSelector

path selector

TS Text

free text selector

Instances

Eq Selector

Methods

(==) :: Selector -> Selector -> Bool

(/=) :: Selector -> Selector -> Bool

Show Selector

Methods

showsPrec :: Int -> Selector -> ShowS

show :: Selector -> String

showList :: [Selector] -> ShowS

type Selectors = [Selector]

data Cond

Conditions.

Constructors

ID Text BoltId

ID(txt) = boltId

IDs Text [BoltId]

ID(txt) IN [boltId1, boltId2, ... ]

IN Text [Text]

txt IN [txt1, txt2, ... ]

TC Text

free text condition

Instances

Eq Cond

Methods

(==) :: Cond -> Cond -> Bool

(/=) :: Cond -> Cond -> Bool

Show Cond

Methods

showsPrec :: Int -> Cond -> ShowS

show :: Cond -> String

showList :: [Cond] -> ShowS

data Conds

Constructors

Conds :&&: Conds infixr 3

condition AND condition

Conds :||: Conds infixr 2

condition OR condition

C Cond

single condition

Not Conds

NOT condition

Instances

Eq Conds

Methods

(==) :: Conds -> Conds -> Bool

(/=) :: Conds -> Conds -> Bool

Show Conds

Methods

showsPrec :: Int -> Conds -> ShowS

show :: Conds -> String

showList :: [Conds] -> ShowS

data Expr next

Expression in Cypher language.

Constructors

Create Selectors next

CREATE query

Match Selectors next

MATCH query

OptionalMatch Selectors next

OPTIONAL MATCH query

Merge Selectors next

MERGE query

Where Conds next

WHERE query

Set [Text] next

SET query

Delete [Text] next

DELETE query

DetachDelete [Text] next

DETACH DELETE query

Return [Text] next

RETURN query

Text Text next

free text query

Instances

Functor Expr

Methods

fmap :: (a -> b) -> Expr a -> Expr b

(<$) :: a -> Expr b -> Expr a

Eq next => Eq (Expr next)

Methods

(==) :: Expr next -> Expr next -> Bool

(/=) :: Expr next -> Expr next -> Bool

Show next => Show (Expr next)

Methods

showsPrec :: Int -> Expr next -> ShowS

show :: Expr next -> String

showList :: [Expr next] -> ShowS

class SelectorLike a where

Class for Selectors, which can update identifier, labels and props.

Minimal complete definition

withIdentifier, withLabel, withProp

Methods

withIdentifier :: Text -> a -> a

withLabel :: Text -> a -> a

withProp :: (Text, Value) -> a -> a

(#) :: a -> (a -> b) -> b

defaultNode :: NodeSelector

defaultRel :: RelSelector

toNodeSelector :: Node -> NodeSelector

toRelSelector :: URelationship -> RelSelector

createF :: Selectors -> Free Expr ()

Prepare CREATE query

matchF :: Selectors -> Free Expr ()

Prepare MATCH query

optionalMatchF :: Selectors -> Free Expr ()

Prepare 'OPTIONAL MATCH' query

mergeF :: Selectors -> Free Expr ()

Prepare MERGE query

whereF :: Conds -> Free Expr ()

Prepare WHERE query

setF :: [Text] -> Free Expr ()

Prepare SET query

deleteF :: [Text] -> Free Expr ()

Prepare DELETE query

detachDeleteF :: [Text] -> Free Expr ()

Prepare 'DETACH DELETE' query

returnF :: [Text] -> Free Expr ()

Prepare RETURN query

textF :: Text -> Free Expr ()

Prepare query with custom text

formQuery :: Free Expr () -> Text